Description
A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected application is vulnerable to SQL injection through the internally used 'CreateTrace' method. This could allow an unauthenticated remote attacker to bypass authorization controls, to read from and write to the application's database and execute code with "NT AUTHORITY\NetworkService" permissions. A successful attack requires the attacker to be able to access port 8000 on a system where a vulnerable version of the affected application is executed on. (ZDI-CAN-25911)
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-11451
1. Vulnerability Assessment and Severity Evaluation
The vulnerability identified in TeleControl Server Basic (all versions < V3.1.2.2) is an SQL injection flaw in the 'CreateTrace' method. This vulnerability allows an unauthenticated remote attacker to bypass authorization controls, read from and write to the application's database, and execute code with "NT AUTHORITY\NetworkService" permissions. The CVSS Base Score of 9.8 indicates a critical severity level, reflecting the high potential for exploitation and significant impact.
CVSS Vector Breakdown:
- AV:N (Network): The vulnerability is exploitable over the network.
- AC:L (Low): The attack complexity is low, meaning it does not require specialized conditions.
- PR:N (None): No privileges are required to exploit the vulnerability.
- UI:N (None): No user interaction is required.
- S:U (Unchanged): The scope of the vulnerability does not change.
- C:H (High): Confidentiality impact is high.
- I:H (High): Integrity impact is high.
- A:H (High): Availability impact is high.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- Network Access: The attacker needs access to port 8000 on the target system.
- SQL Injection: The attacker can inject malicious SQL queries through the 'CreateTrace' method.
Exploitation Methods:
- Unauthenticated Access: The attacker can exploit the vulnerability without needing any credentials.
- Database Manipulation: The attacker can read sensitive data, modify database entries, and execute arbitrary SQL commands.
- Code Execution: The attacker can execute code with "NT AUTHORITY\NetworkService" permissions, potentially leading to full system compromise.
3. Affected Systems and Software Versions
Affected Software:
- TeleControl Server Basic
- All versions prior to V3.1.2.2
Affected Systems:
- Any system running the vulnerable versions of TeleControl Server Basic and exposing port 8000 to the network.
4. Recommended Mitigation Strategies
Immediate Actions:
- Patching: Upgrade to TeleControl Server Basic version V3.1.2.2 or later.
- Network Segmentation: Restrict access to port 8000 to trusted networks only.
- Firewall Rules: Implement firewall rules to block unauthorized access to port 8000.
Long-Term Strategies:
- Regular Audits: Conduct regular security audits and vulnerability assessments.
- Input Validation: Ensure proper input validation and sanitization to prevent SQL injection attacks.
- Least Privilege: Implement the principle of least privilege for database and system access.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to European organizations using TeleControl Server Basic, particularly in critical infrastructure sectors such as energy, manufacturing, and healthcare. The potential for unauthenticated remote exploitation and the high impact on confidentiality, integrity, and availability make it a critical concern for cybersecurity professionals.
Regulatory Compliance:
- Organizations must ensure compliance with relevant regulations such as GDPR and NIS Directive.
- Reporting and disclosure of the vulnerability should follow established guidelines to mitigate risks.
6. Technical Details for Security Professionals
Detection:
- Network Monitoring: Monitor for unusual traffic on port 8000.
- Log Analysis: Analyze application logs for suspicious SQL queries and unauthorized access attempts.
Response:
- Incident Response Plan: Develop and implement an incident response plan specific to SQL injection attacks.
- Forensic Analysis: Conduct forensic analysis to identify the extent of the compromise and affected data.
Prevention:
- Secure Coding Practices: Adopt secure coding practices to prevent SQL injection vulnerabilities.
- Regular Updates: Ensure that all software, including TeleControl Server Basic, is regularly updated to the latest versions.
References:
By addressing this vulnerability promptly and comprehensively, organizations can significantly reduce the risk of exploitation and protect their critical assets.